Public facilitator · x402 v2 · XDC mainnet

Take x402 payments from your own server.

The public facilitator verifies and settles x402 payments for an API you host yourself. Your server asks it is this payment real and settle it, and it does the on-chain work and pays the gas.

Open the facilitator dashboardRead the seller guide

Buyers need nothing here: no account, no API key, no credits. Everything on this page is the seller side.

Your serverFacilitatorXDC
seller · one paid callx402 v2

  1. 402 with your price

    0.01 USDC · eip155:50

  2. POST /verify

    signature recovered

  3. POST /settle

    queued, gas paid for you

  4. 4

    GET /settlements/{id}

    confirmed · 0x9c4f...a1b2

    settled
USDC
gasless · EIP-3009
settled on XDC
What it gives you

A payment layer you call, not one you operate

Verify and settle over HTTP

Two endpoints and a poll. The facilitator recovers the signature, broadcasts the transfer, and reports when it confirms on-chain.

Gasless for your buyers

Buyers sign an EIP-3009 authorization and never submit a transaction, so they never hold native XDC. The facilitator pays the gas.

Seller API keys

One bearer string per deployment, shown once, stored only as a hash. Label it, rate-limit it, rotate or revoke it from the dashboard.

Prepaid credits

1 credit = 0.001 USDC, fixed, so credit you bought last month is worth the same today. Only confirmed settlements draw it down.

Top up in USDC

Pay from your XDC AI smart wallet or a linked wallet, then paste the transaction hash. No card, no invoice, no account number to quote.

Usage and history

Requests per key, settlement records with their transaction hashes, and the facilitator's own ledger of credit added and credit spent.

Your dashboard

Keys, credits and settlements in one place

The facilitator keys your account by the address your API is paid at, so pick that address once and everything hangs off it.

  • One-time setup. Choose your receiving address, mint a key for each deployment, and keep the quota in view.

  • Credits without ceremony. Buy in USDC from a wallet you already hold, paste the hash, and watch the balance move.

  • Proof after the fact. Per-key usage, settlement records with transaction hashes, and the ledger behind every debit.

Open the dashboard
xdcai.tech/account/facilitator
Credit balance

12,480

credits · 1 credit = 0.001 USDC

Buy credits
Seller API keys2 of 5

  • production

    ID: 8c9208ecb7d5 · 600/min

    active

  • staging

    ID: 4f71ab0d92e4 · 120/min

    active
+ New key
Connect

https://public-facilitator.xdcai.tech

POST/verifyPOST/settleGET/settlements/{id}

Dashboard preview with sample figures

Do you need it

Three ways to charge for an API call

Most sellers should use the gateway: no key, no credits, no polling loop, and the service gets listed in the marketplace. Reach for the facilitator when the payment logic belongs in your own application.

Gateway

Point it at your existing API and it handles 402, verification and settlement for you. Nothing to manage, and your service gets listed in the marketplace.

List your service

Public facilitator

this page

You host the API and own the payment logic. You manage a seller API key and the verify, settle and polling calls.

Open the dashboard

Run your own

You operate the whole payment layer, including the wallet that submits settlements and pays the gas for them.

Build a facilitator
Get started

Mint a key and settle your first call

Pick the address your API is paid at, create a key, and top up credits when you are ready to go live.

Open the facilitator dashboardRead the docs